I don't see any harm in taking advice from strangers online. Isn't that what people often do here?
Granted, I think you (general) have to mull over the advice and decide if it's right for you, maybe tweak it a little bit to better fit your personality and values.
But yes, I kind of wish our generations didn't defer so much to their parents/PILs. I would never have gone totally NC w/ MIL, no matter what anyone advised. Nor would I have kept her from seeing the grands. But I wish I had stood up to her more firmly and cut back my contact w/ her. No doubt, sometimes, AC/CIL today are cruel, but many of them are showing a courage, IMO, that I wish I had back then.